SOLID STATE ELECTROLYTES FOR ELECTROCHEMICAL CELLS

摘要

A solid state electrolyte for solid state electrochemical cells comprising, in mole percent, a combination of from 8 to 47% lithium moiety, from 3 to 16% phosphate moiety, from 10 to 50% iodide and from 5 to 30% in total of one or both of calcium or aluminum moieties, the non-metallic moieties being in stoichiometric relationship with the metallic moieties. An advantageous electrolyte is prepared by reacting calcium iodide and lithium orthophosphate.